图论题：一开始我是用tarjan算法做的，wrong answer 了很多次，然后又用了floyd-warshell算法，也wa了 最后找了题解，原来最后的dataset后面不是组数，是样例的编号，题根本就没说，让人怎么理解。。。 tarjan #include<stdio.h>#include<iostream>#include<string.h>#include<string>#

原题链接：https://vjudge.net/problem/UVA-247 分类：图论 备注：Floyd传递闭包 注意：逗号后面有空格，否则显示WA 代码如下： #include<iostream>#include<map>#include<vector>#include<cstring>using namespace std;const int maxn = 30;stri

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